/Engine/Source/Runtime/AssetRegistry/Public/AssetRegistry/AssetRegistryState.h
Returns const version of internal Tag->AssetDatas map for fast iteration
const [TMap](API\Runtime\Core\Containers\TMap)< [FName](API\Runtime\Core\UObject\FName), const [TArray](API\Runtime\Core\Containers\TArray)< const [FAssetData](API\Runtime\CoreUObject\AssetRegistry\FAssetData) * > > GetTagToAssetDatasMap() const